3154642189 has 2 divisors, whose sum is σ = 3154642190. Its totient is φ = 3154642188.

The previous prime is 3154642187. The next prime is 3154642193. The reversal of 3154642189 is 9812464513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3083914089 + 70728100 = 55533^2 + 8410^2 .

It is a cyclic number.

It is not a de Polignac number, because 3154642189 - 2¹ = 3154642187 is a prime.

Together with 3154642187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3154642187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1577321094 + 1577321095.

It is an arithmetic number, because the mean of its divisors is an integer number (1577321095).

Almost surely, 2^3154642189 is an apocalyptic number.

It is an amenable number.

3154642189 is a deficient number, since it is larger than the sum of its proper divisors (1).

3154642189 is an equidigital number, since it uses as much as digits as its factorization.

3154642189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 43.

The square root of 3154642189 is about 56166.2014827423. The cubic root of 3154642189 is about 1466.6169582728.

The spelling of 3154642189 in words is "three billion, one hundred fifty-four million, six hundred forty-two thousand, one hundred eighty-nine".